Higher Intensity Discharge ballast (HID ballast),Capacitor,Ignitor are match for HID bulbs,the HID lamp is produced by passing an electric current by means of a gas or vapor at a higher pressure. The present produces a higher intensity arc or discharge of light which is extremely effective and has a longer life than the typical incandescent lamp. The exception will be the Low Pressure Sodium lamp which passes an electric current by way of a gas or vapor at a low stress.Mercury Vapor (MV), Metal Halide (MH), Higher Stress Sodium (HPS) and Low Pressure Sodium (LPS) comprise the family members of HID lamps.
All HID lamps possess a warm-up period that lasts from 3-10 minutes (based around the variety and wattage) ahead of it produces complete light output.
It can be important that an HID lamp have the correct Higher Intensity Discharge ballast to operate appropriately (evaluate ANSI code around the ballast and lamp package)
HID lamps possess a restrike time which ranges from 1-15 minutes depending on sort and wattage.
This ballast offers a linear variation of output power from 40 to 100% as opposed to capacitor switching which changes lamp power as a step function. That is accomplished by varying the conduction time on an inductor which negates capacitance inside the circuit allowing enhanced manage of lamp existing. Lamp present is sensed in a closed feedback loop circuit which can instantaneously respond to modifications making the required adjustments.
A PLC interface is out there to communicate using the ballast so as to vary lamp output. In order to guard all the manage circuitry from power issues typically identified on the major the manage circuits are all situated on the secondary with the High Intensity Discharge ballast.
High Intensity Discharge ballast Capabilities:
Constantly variable output power from 40% energy by means of 100% energy
Precise regulation. Much less than a 2% modify in output energy over an input variety of +l0% to – 20%.
No have to have for mercury relays.
Very high input energy factor. Usually greater than 0.90
Higher watt efficiency
Controllable through a Programmable Logic Controller (PLC). A 4-2Oma signal is preferred with 0- 5v and 0-lOv optional
All elements are pre-wired and tested in the factory
Easy to wire. Just six wire connections must be created to create the method operational
Capable of operating either a common mercury lamp or metal halide lamps
Secondary wave-forms are created to improve lamp life.